Homework Answers
Add Answer to:
1. A 2kg cubical cat slides on a horizontal surface 5m/s | 2kg- The surface is...
On a planet having g= 10m/s^2, a 2kg mass, starting from rest, slides down a frictionless...
On a planet having g= 10m/s^2, a 2kg mass, starting from rest, slides down a frictionless in life on to a frictionless horizontal surface. The speed of the mass on the horizontal surface is 10m/s. A) Determine the height h at which the box began its slide. consider again the same frictionless incline. However, upon reaching the horizontal surface, a surface having friction is encountered. B) If when the mass starts from the same height as in part A), the...
As shown below (not to scale), a block of mass starts from rest and slides down...
As shown below (not to scale), a block of mass starts from rest
and slides down a frictionless ramp of height h. Upon reaching the
bottom of the ramp, it continues to slide across a flat
frictionless surface. It then crosses a "rough patch" on the
surface of length d=10m. This rough patch has a coefficient of
kinetic friction uK=.1. After crossing the rough patch, the block's
final speed is vf=2m/s. What is the height of the ramp? Hint: I...
(2) A block of mass m = 2kg, slides on a horizontal surface and collides with...
(2) A block of mass m = 2kg, slides on a horizontal surface and collides with a spring of force constant 200N/cm. The block compresses the spring 6.16cm from the un-stretched position. Mechanical energy in the amount of 200m) is dissipated due to friction as the block is brought to rest. What was the speed of the block at the instant of collision with the spring? (5-points)
A 1.05 kg block slides on a frictionless, horizontal surface with an speed of 1.45 m/sec....
A 1.05 kg block slides on a frictionless, horizontal surface with an speed of 1.45 m/sec. The block encounters an unstretched spring with a spring constant of 285 N/m. 1)What is the initial kinetic energy of the block before it hits the spring? KE0 = 2)What is the potential energy of the mass and spring system when the spring is at its point of maximum compression? Umax = 3)How far is the spring compress before the block comes to rest?...
3. A 2.0kg object with an initial speed of 12m/s moves on a horizontal frictionless surface...
3. A 2.0kg object with an initial speed of 12m/s moves on a horizontal frictionless surface until it encounters a 8.0m rough patch with u = 0.48. It moves through the rough patch to the other side. a) What is the initial kinetic energy c) What is the speed after the rough patch? b) what is the change in thermal energy due to the rough patch? d) Suppose it encounters a 2nd rough patch with the same friction constant. How...
A 2-kg block slides along a rough horizontal surface and slows to 10 m/s after traveling...
A 2-kg block slides along a rough horizontal surface and slows to 10 m/s after traveling 20 m. it the kinetic coeficient of friction between the Book SA ace is 0.2, the initial speed (m/s) of the block was most nearly 13.4 20.0 10.0 10.4
6. A 2.0 kg block slides to the right across a horizontal surface.
6. A 2.0 kg block slides to the right across a horizontal surface. Let's define a coordinate system where the +x-direction is to the right. At x=0, the block's velocity is +5.0 m / s (to the right). The magnitude of the kinetic friction force between the block and surface is 10N.a. Draw a force diagram of the block. Which forces expert zero work on the block? Explain why.c. What is the work that the kinetic friction force exerts on...
Question 28 (1 point) The horizontal surface on which the block slides is frictionless. The speed...
Question 28 (1 point) The horizontal surface on which the block slides is frictionless. The speed of the block before it touches the spring is 6.0 m/s. How fast is the block moving at the instant the spring has been compressed 15 cm? k= 2.0 kN/m 1 20 kg 14 m/s 4.4 m/s 3.7 m/s 4.9 m/s 5.4 m/s
A block (6 kg) starts from rest and slides down a frictionless ramp #1 of height...
A block (6 kg) starts from rest and slides down a frictionless ramp #1 of height 6 m. The block then slides a horizontal distance of 1 m on a rough surface with kinetic coefficient of friction μk = 0.5. Next, it slides back up another frictionless ramp #2. Find the following numerical energy values: 1.Initial gravitational potential energy on Ramp #1: U1G = J 2.Kinetic energy at bottom of Ramp #1 before traveling across the rough surface: K =...
Part C Review A 4.5 kg box slides down a 5.2-m -high frictionless hill starting from rest, across a 2.3-m -wide horizontal surface then hits a horizontal spring with spring constant 470 N/m How far i...
Part C Review A 4.5 kg box slides down a 5.2-m -high frictionless hill starting from rest, across a 2.3-m -wide horizontal surface then hits a horizontal spring with spring constant 470 N/m How far is the spring compressed? Express your answer using two significant figures The other end of the spring is anchored against a wall The ground under the spring is frictionless, but the 2.3-m- long horizontal surface is rough. The coefficient of kinetic friction of the box...
As shown below (not to scale), a block of mass starts from rest
and slides down a frictionless ramp of height h. Upon reaching the
bottom of the ramp, it continues to slide across a flat
frictionless surface. It then crosses a "rough patch" on the
surface of length d=10m. This rough patch has a coefficient of
kinetic friction uK=.1. After crossing the rough patch, the block's
final speed is vf=2m/s. What is the height of the ramp? Hint: I...
(2) A block of mass m = 2kg, slides on a horizontal surface and collides with a spring of force constant 200N/cm. The block compresses the spring 6.16cm from the un-stretched position. Mechanical energy in the amount of 200m) is dissipated due to friction as the block is brought to rest. What was the speed of the block at the instant of collision with the spring? (5-points)
3. A 2.0kg object with an initial speed of 12m/s moves on a horizontal frictionless surface until it encounters a 8.0m rough patch with u = 0.48. It moves through the rough patch to the other side. a) What is the initial kinetic energy c) What is the speed after the rough patch? b) what is the change in thermal energy due to the rough patch? d) Suppose it encounters a 2nd rough patch with the same friction constant. How...
A 2-kg block slides along a rough horizontal surface and slows to 10 m/s after traveling 20 m. it the kinetic coeficient of friction between the Book SA ace is 0.2, the initial speed (m/s) of the block was most nearly 13.4 20.0 10.0 10.4
Question 28 (1 point) The horizontal surface on which the block slides is frictionless. The speed of the block before it touches the spring is 6.0 m/s. How fast is the block moving at the instant the spring has been compressed 15 cm? k= 2.0 kN/m 1 20 kg 14 m/s 4.4 m/s 3.7 m/s 4.9 m/s 5.4 m/s
Part C Review A 4.5 kg box slides down a 5.2-m -high frictionless hill starting from rest, across a 2.3-m -wide horizontal surface then hits a horizontal spring with spring constant 470 N/m How far is the spring compressed? Express your answer using two significant figures The other end of the spring is anchored against a wall The ground under the spring is frictionless, but the 2.3-m- long horizontal surface is rough. The coefficient of kinetic friction of the box...
Most questions answered within 3 hours.
-
find the critical value associated with a right sided hypothesis of
the mean using a sample...
asked 1 hour ago -
Which of the following statements is true with respect to a
simple linear regression model?
a....
asked 2 hours ago -
The energy required to remove an electron from a surface of a
solid element is called...
asked 3 hours ago -
How would you train your employees to avoid risks of using
mobile devices?
asked 4 hours ago -
Assume Kw = 1.01 ✕ 10−14
For pure water, we can calculate [H3O+ ] = [OH...
asked 5 hours ago -
Suppose that on a temperature scale X, water boils at 203.0°X
and freezes at -105.7°X. What...
asked 5 hours ago -
BaS crystallizes in a cubic unit cell with S2- ions on each
corner and each face....
asked 6 hours ago -
A. 0≤P(Oi)≤10≤P(Oi)≤1 for each i
B. P(Oi)≤0P(Oi)≤0
C. P(Oi)=1+P(OCi)P(Oi)=1+P(OiC)
D. P(Oi)≥1P(Oi)≥1
If an experiment consists of...
asked 7 hours ago -
A battery has an emf of 9.20V and an internal resistance of 1.20
ohm. a)What resistance...
asked 7 hours ago -
The area of an elastic circular loop decreases at a constant
rate, dA/dt = −6.60×10−3 m2/s...
asked 9 hours ago -
The denaturation of proteins can be described by the
equilibrium
F⇌U
where F and U represent...
asked 10 hours ago -
Please answer what the maximum and minimum force is, and the
angle on the ion is...
asked 10 hours ago